97 citations
,
January 2005 in “Wear” In this study, the researchers measured and discussed the friction and wear properties of various hair types against synthetic skin and other hair, finding variations based on factors like ethnicity, hair condition, and environmental conditions.
43 citations
,
September 2001 in “Scanning” Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.
January 2010 in “EPub Bayreuth (University of Bayreuth)” This study found that Polyquaternium-87 significantly reduced friction forces on hair surfaces treated with various shampoo formulations, highlighting its potential for improving hair care products.
1 citations
,
March 2010 in “International Journal of Cosmetic Science” This study introduces a new device for measuring changes in hair stiffness and lubricity, which can help predict the effects of various hair treatments.
In this study, the relaxed overhand knot method demonstrated its effectiveness in measuring the self-friction coefficient of single hair fibers, revealing that sodium hydroxide treatment significantly increases friction and could aid microsurgical applications.